Date: 26 November 2013
Secondary metabolites, 3D structure: Trivial name – Astepyrone metabolite 2
Copyright: n/a
Notes:
Species: A. terreusSystematic name: 6H-Furo[2,3-b]pyran-6-one, 2,3,3a,7a-tetrahydro-2-hydroxy-4-methoxy-3-methylMolecular formulae: C9H12O5Molecular weight: 200Chemical abstracts number: 86925-92-0Selected references: Hassan, M. M.; Elshafei, A. M.; Elzainy, T. A. (Lab. Microb. Chem., Natl. Res. Cent., Cairo, Egypt). Egypt. J. Bot., Volume Date 1980, 23(2), 123-6 (English) 1982.
Images library
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Title
Legend
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Necrotic lung tissue in culture
Af=Colony of Aspergillus fumigatus
B=bacterial colonies
L=lung tissue
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A photograph of part of the upper lung lobe of an immunosuppressed patient. The lung tissue shows extenive areas of necrosis due to invasive colonisation.
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A photograph of a cavity in the upper lobe of the lung of a patient with ankylosing spondylitis. Such cavitation,which may be confused with prior tuberculosis, can follow fibrosis.
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Plugs stained with Methenamine/silverActively growing mycelia of the fungus are a deep brown/black. Counterstaining shows the dense mucus of the plugs as predominantly orange.
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Sputum from an asthmatic patient showing plugs(casts). The development of plugs coincided with an increased prevalence and severity of episodes of asthma
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microscopic characters Conidiophore stipes(C)1300-2800um long:Vesicles(V)40-70um wide,clavate:Phialides(Ph) uniseriate:Conidia(Con)3.5-4.0um long,smooth walled.
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microscopic characters Conidiophore stipes(C)225-350um arising from hyphae(Hy):Vesicles(Ves)15-25um wide:Phialides(Ph)uniseriate:Conidia(Con)2.4-3.0um spherical to ovoid,roughened.
